Answer:
$50
Step-by-step explanation:
15x18=270
1170-270=900
900/18=50
Answer:
increase = 37.38 cm²
You'd like the first way because it took less effort and less chance of a miscalculation.
Step-by-step explanation:
first way:
(just work with the difference in height)
(0.7 x 8.7 x 2) + (0.7 x 18 x 2) = 37.38 cm²
second way:
old total lateral surface area = (31 x 8.7 x 2) + (31 x 18 x 2) = 1655.4
new total lateral surface area = (31.7 x 8.7 x 2) + (31.7 x 18 x 2) = 1692.78
increase = 1692.78 - 1655.4 = 37.38 cm²
Answer:
3000
Step-by-step explanation:
640x3 = 1920
90x12 = 1080
Answer:
dy=9-y
dx=x
Step-by-step explanation:
Answer: use socratic you take a picture of the problem and it does it.
